Utilização de diferentes metodologias para determinação da área de olho de lombo em ovinos

Costa, Roberto Germano; Lima, Anny Graycy Vasconcelos de Oliveira; Oliveira, Cléber Franklin Santos de; Azevedo, Paulo Sérgio de; Medeiros, A. N.

doi:10.4321/s0004-05922012000400014

Cited by 12 publications

(6 citation statements)

References 1 publication

(2 reference statements)

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“…Left half carcass was separated in shoulder, leg (section between the first and the second sacral vertebrae) and other parts (half carcass subtracted from the leg and shoulder). The area of the Longissimus dorsi muscle (loin eye area -LEA), measured using the grid points methodology, and thickness of subcutaneous fat (fat thickness -FT) were measured in the section made between the 12 th and 13 th ribs (MENEZES et al, 2008;COSTA et al, 2012).…”

Section: Methodsmentioning

confidence: 99%

Crude glycerin in meat goat diets: intake, performance and carcass traits

et al. 2016

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Section: Methodsmentioning

confidence: 99%

Crude glycerin in meat goat diets: intake, performance and carcass traits

et al. 2016

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“…In the left half carcass a cross-section was made between the 12th and 13th ribs to measure the Longissimus muscle area (LMA), and the muscle contour was traced on a plastic sheet transparency for the subsequent determination of the area in a digital planimetric machine (HAFF®, DIGIPLAN model) (COSTA et al, 2012). Also in the L. dorsi, with the aid of a digital calliper, the rib fat thickness (RFT) was measured, obtained at a distance of ¾ from the medial side of the second muscle, the methodology Cezar and Sousa (2007).…”

Section: Methodsmentioning

confidence: 99%

Carcass and non-carcass component characteristics of lambs fed with cassava wastewater dregs in replacement of corn

Cardoso

Véras

Carvalho

et al. 2016

SCA

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The objective was to evaluate the effect of the substitution (0, 33, 66 and 100%) of corn by cassava wastewater dregs on carcass characteristics and non-carcass components of crossbred Santa Inês lambs. Forty male sheep, uncastrated with an average initial body weight of 20 ± 1.87 kg and five months of age, were used. These were housed in individual pens in a randomized block design with four treatments and ten repetitions and slaughtered after 70 days of confinement. Quadratic effect (P<0.05) was observed for the empty body weight (EBW), hot carcass weight (HCW) and cold carcass weight (CCW) and carcass compactness index (CCI), with maximum points of 36.14, 19.45, 20.20 and 0.31 kg cm -1 for the replacement level of corn for cassava wastewater dregs, 50.0, 53.84, 54.04 and 45.45% respectively. There was also an effect (P<0.05) on the weights of the rumen and "Buchada", with maximum points of 0.909 and 6.25 kg per replacement level, 49.11 and 51.29% respectively. As for retail cuts, only the efficiency of the leg was altered (P<0.05), having a linear increase while the other variables were not affected. Cassava wastewater dregs can be used in full as an alternative food in the diet of feedlot lambs without harming the main carcass characteristics and non-carcass components. Key words: Alternative food. Meat. Organs. Cassava. Sheep. ResumoObjetivou-se avaliar o efeito da substituição (0, 33, 66 e 100%) do milho pela borra de manipueira sobre as características de carcaça e componentes não-carcaça de cordeiros mestiços Santa Inês. Foram utilizados quarenta ovinos machos não castrados, com peso corporal inicial médio de 20 ± 1,87 kg e cinco meses de idade. Estes foram confinados em baias individuais, em delineamento em blocos ao acaso, com quatro tratamentos e dez repetições, e abatidos após 70 dias de confinamento. Efeito quadrático (p<0,05) foi observado para o peso do corpo vazio (PCV), peso de carcaça quente (PCQ) e fria (PCF) e o índice de compacidade da carcaça (ICC), as mesmas apresentaram pontos de máxima de 36,14; 19,45; 20,20 e 0,31kg cm -1 ao nível de substituição do milho pela borra de manipueira de 50,0; 53,84; 54,04 e 45,45%, respectivamente. Também houve efeito (p<0,05) sobre os pesos do rúmen e da buchada, com ponto de máxima de 0,909 e 6,25 kg ao nível de substituição de 49,11 e 51,29%, respectivamente. Quanto aos cortes comerciais, apenas o rendimento da perna foi alterado (p<0,05) apresentando efeito linear crescente. Enquanto as demais variáveis não foram afetadas. A borra de manipueira pode ser utilizada de forma integral como alternativa alimentar na dieta de cordeiros em confinamento, sem prejudicar as principais características da carcaça e os componentes não-carcaça.

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“…The individual weight of each joint, composed of the left half carcass cuts, was recorded for the calculation of its ratio in relation to the sum of half reconstituted carcass, thus obtaining yield of carcass cuts. In the carcass' left half, a cross-sectional cut was made between 12 th and 13 th ribs, exposing the cross section of the Longissimus dorsi muscle, whose area was dashed through permanent marker, with an average of 2.0 mm tip, on a transparent plastic film, in order to determine the rib-eye area (REA); maximum width (A), and maximum depth (B) were measured with a 30 cm graduated ruler to be used in the formula: REA = (A/2 × B/2)π, according to Costa et al (2012). The rib fat thickness (RT) was measured with a caliper, obtained ¾ away from the medial side of the L. dorsi muscle, of the back-lumbar line.…”

Section: Methodsmentioning

confidence: 99%

Carcass and non-carcass characteristics of sheep fed on cassava (Manihot pseudoglaziovii Pax & K. Hoffm.)

Maciel

Carvalho

Batista

et al. 2015

Chilean J. Agric. Res.

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Sheep production systems installed in the semi-arid region of Brazil depend on the forage support the 'caatinga' biome. This study aimed at evaluating the substitution of hybrid 'Tifton 85' (Cynodon spp.) by cassava (Manihot pseudoglaziovii Pax & K. Hoffm.) hay or silage on the components of sheep's' body weight. Twenty-four animals, with no defined breed, were used for the study, with an initial body weight of 19.77 ± 1.95 kg and an average age of 6-mo, being divided into three treatments ('Tifton 85' hay, cassava silage, and cassava hay). The animals were slaughtered at 56 d and all the body parts of the animals were weighed. Data were subjected to ANOVA and mean comparison test (P = 0.05). Means were superior (P < 0.05) for DM intake and contents of the gastrointestinal tract (CGT) with values of 1.17 kg d -1 and 4.84 kg for cassava hay, respectively. There was no significant difference (P > 0.05) for body weight at slaughter and cold carcass weight, which had means of 28.10 and 12.38 kg, respectively. The hot carcass and leg yields showed values of 58% and 34%, respectively, and were not influenced (P > 0.05) by different forages. The constituents that were not components of the carcass, organs, offal, and by-products were not affected by the replacement of 'Tifton 85' hay by cassava hay or silage. Cassava hay or silage can replace 'Tifton 85' hay for feeding sheep in complete diets without compromising their body components' yields and weights.

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Utilização de diferentes metodologias para determinação da área de olho de lombo em ovinos

Cited by 12 publications

References 1 publication

Crude glycerin in meat goat diets: intake, performance and carcass traits

Crude glycerin in meat goat diets: intake, performance and carcass traits

Carcass and non-carcass component characteristics of lambs fed with cassava wastewater dregs in replacement of corn

Carcass and non-carcass characteristics of sheep fed on cassava (Manihot pseudoglaziovii Pax & K. Hoffm.)

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